7 THE BOOK OF BRITISH BUTTERFLIES. 



taken in many other situations also. No localities need 

 be given for a butterfly that is usually common through- 

 out this country and in Scotland too. 



The eggs are laid in May and June on the Dog Violet 

 ( Viola canina) and other plants of the same genus. The 

 young larvae appear about the end of June. They feed 

 till about the middle of July, and then hibernate till early 

 in the following spring. Towards the end of April they 



ARGYNNIS EUPHROSYNE. 



become chrysalides, which are attached to the food-plant, 

 and the perfect insects are on the wing during May and 

 early June. 



The larva (Fig. 67), which is about iin. in length, is 

 almost black in ground-colour. It is slightly sprinkled 

 with white on the dorsal surface, while along the spiracular 

 region a number of large whitish spots form a broad line. 

 The head, legs, and spiracles are black, and the claspers 

 and ventral surface dull red. The spines on this caterpillar 



